Here's another way if you don't do SV. Smoke a pork shoulder, picnic, Boston Butt. Pull it apart by hand and remove all the fat, skin, connective tissue. Take all that discard and render it down in a skillet. You will have a skillet full of crispy bits and fat. Reserve all that. Throw however much pulled pork you want to prepare in a cast iron skillet. Put in some of the reserved fat and crispies and toss and pan fry it till the pork has a little crispiness. You can marinade the pork before smoking it, and / or season it with any spices or aromatics in the fry pan. I served this to a little old Mexican lady who declared it the best carnitas she ever ate. To take it to a party, throw it in an electric roaster and put it on 180º when you get there, it will be even better after it heats like that for a while.